M40Z111MH6F

Supervisors Overview

The M40Z111MH6F is a voltage supervisory circuit manufactured by STMicroelectronics, designed for non-volatile RAM (NVRAM) and SRAM backup applications. It operates within a supply voltage range of 4.5 V to 5.5 V, featuring an undervoltage threshold of 4.2 V and an overvoltage threshold of 4.75 V. The device monitors a single input and provides power failure detection capabilities. It is housed in a surface-mount SOIC-28 package with snaphat sockets and functions reliably across an operating temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrated battery backup switching mechanism for NVRAM and SRAM protection
• Dedicated power failure detection output for system integrity monitoring
• Snaphat socket compatible packaging for enhanced mechanical stability

Supervisors Applications

• Non-volatile RAM (NVRAM) power management
• Static Random Access Memory (SRAM) backup systems
• Industrial control board power supervision

Supervisors Procurement Notes

Verify component authenticity through authorized channels due to the discontinued status of this part number. Confirm that the specific SOIC-28 snaphat variant matches the required footprint for existing PCB designs. Ensure compliance with RoHS3 standards as documented in the environmental classification files provided by the manufacturer.

Supervisors Selection Notes

Select this component when a dedicated hardware solution for SRAM or NVRAM backup is required without manual reset functionality. The fixed voltage thresholds suit standard 5V logic systems. Consider the low quiescent current of 6 uA for energy-efficient designs where standby power consumption is critical.

Supervisors Part Context

This device belongs to the M40Z111 series of supervisory circuits from STMicroelectronics. It is categorized under Power Management ICs (PMIC) specifically as a Voltage Supervisory circuit. The product line focuses on protecting memory components during power transitions in embedded systems.

Supervisors Replacement Considerations

The M40Z111MH6F is listed as discontinued. Engineers should consult official substitution guides or contact STMicroelectronics directly for verified replacement part numbers suitable for legacy designs.